uschindler commented on code in PR #15843:
URL: https://github.com/apache/lucene/pull/15843#discussion_r2965427247
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lucene/core/src/java/org/apache/lucene/store/PosixNativeAccess.java:
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@@ -79,14 +81,12 @@ static Optional<NativeAccess> getInstance() {
+ "pass the following on command line:
--enable-native-access=%s",
Optional.ofNullable(PosixNativeAccess.class.getModule().getName())
.orElse("ALL-UNNAMED")));
- } catch (RuntimeException | Error e) {
Review Comment:
It is not brittle. The reason for the `catch (Throwable)` and the
corresponding `catch (Runtime
+Error)` is the general pattern used in Lucene when you execute a
`MethodHandle`. As panama method handles by default never throw anything (thats
defined in spec, the assertion is correct. But if you catch Throwable, you have
to filter on RuntimException and Error to not swallow or mis-rethrow the
runtime exception. Thats needed for correctness of code.
It does not make it briddle. The same type of code is also used inside the
JVM. That's how it should be. The feature is optional, but it the lookup is not
briddle.
There is actually a bug, but it is fixed here. It may catch on a JVM or
platform that has no native support at all. It was caused by a refactoring done
by @jpountz (see above).
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